Vernadsky, George
The origins of Russia
Clarendon, 1959
Buku Teks SO
Rogger, Hans
Russian in the age of modernisation and revolution 1881-1917
Longman, 1992
Buku Teks SO
Crummey, Robert O.
The Formation of Muscovy 1304 - 1613
Longman, 1993
Buku Teks SO
Goekov, B.
Kiev Rus
Foreign Languages Publishing House, 1959
Buku Teks SO
The Structure of Russian History : interpretive essays
Random House, 1970
Buku Teks SO